On further research, I am only getting this error, when registering to a SIP trunk provided by a Swyx PBX, When I register as an extension to the same PBX everything works fine.
So what could be the reason?
On further research, I am only getting this error, when registering to a SIP trunk provided by a Swyx PBX, When I register as an extension to the same PBX everything works fine.
So what could be the reason?